Hold On! (1966) DVD5

When the children of American astronauts vote to name a new spaceship after Herman's Hermits, NASA assigns scholarly Edward Lindquist to follow the British singing group to ascertain if they are worthy of such recognition. Included among the thousands of screaming young girls pursuing the Hermits is Cecilie Bannister, a publicity-minded movie starlet. In Los Angeles, Herman and his group slip away from the protective Lindquist for an evening of fun at an amusement park. There Herman meets attractive Louisa Page, who invites him to a lawn party her mother is giving for charity. The affair nearly turns into a riot when the Hermits begin to sing and Cecilie and a swarm of teenagers crash through the police gates. The Hermits' concert at the Rose Bowl is such a huge success that NASA decides to name a spaceship after them.